A person who has a certain amount with him goes to the market. He can buy 50oranges or 40 mangoes. He retains 10% of the amount for taxi fare and buys 20mangoes, and of the balance he purchases oranges. The number of oranges he canpurchase is:

1. 36

2. 40

3. 15

4. 20

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Correct Answer :

Explanation :
No Explanation available for this question

Two-fifths of the voters promise to vote for P and the rest promise to vote for Q. Ofthese, on the last day, 15% of the voters went back on their promise to vote for P and25% of voters went back of their promise to vote for Q, and P lost by 2 votes. Then thetotal number of voters is

1. 100

2. 110

3. 90

4. 95

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Correct Answer :

100

Explanation :
No Explanation available for this question

Two positive integers differ by 4 and the sum of their reciprocals is 10/21. One of thenumbers is:

1. 3

2. 1

3. 5

4. 21

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Correct Answer :

Explanation :
No Explanation available for this question

ABCD is a square of area 4, which is divided into four non -overlapping triangles asshown in the figure. The sum of the perimeters of the triangles is:

1. 8(2 + 2)

2. 8(1 + ?2)

3. 4(1 + ?2)

4. 4(2 + ?2)

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Correct Answer :

8(2 + 2)

Explanation :
No Explanation available for this question

What is the va lue of m which satisfies 3m² - 21m + 30 < 0

1. m < 2, or m > 5

2. m > 2

3. 2 < m < 5

4. m < 5

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Correct Answer :

2 < m < 5

Explanation :
No Explanation available for this question

The value of

1. 100

2. 105

3. 125

4. 75

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Correct Answer :

₁₀₀

Explanation :
No Explanation available for this question

PQRS is a square. SR is a tangent (at point S) to the circle with centre O and TR = OS.The ratio of the area of the circle to the area of the square is:

1. /3

2. 11/7

3. 3/ ?

4. 7/11

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Correct Answer :

Explanation :
No Explanation available for this question

A line of 100 airline passengers is waiting to board a plane. they each hold a ticket to one of the 100 seats on that flight.(for convenience, let’s say that the nth passenger in line has a ticket for the seat number n.) Unfortunately, the first person in line is crazy, and will ignore the seat number on their ticket, picking a random seat to occupy. all of the other passengers are quite normal, and will go to their proper seat unless it is already occupied.if it is occupied, they will then find a free seat to sit in, at random.What is the probability that the last (100th) person to board the plane will sit in their proper seat (#100)

1. 1/2

2. 1/100

3. 1/101

4. 1/99

5. none of these

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Correct Answer :

1/2

Explanation :
No Explanation available for this question

A polynomial p(x) of degree n satisfies p(0) = 0, p(1) = 1/2, p(2) = 2/3, ... , p(n) = n/(n+1). Find p(n+1).

1. 1 if n is odd

2. n/(n+2) if n is even

3. at least one out of a) and b)

4. both a) and b)

5. none of these

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Correct Answer :

both a) and b)

Explanation :
No Explanation available for this question

Given that all roots of the equation x5 − 10x4 + ax3 + bx2 + cx − 32 = 0 are real and positive.find a+b+c

1. 0

2. 80

3. 160

4. 240

5. none of these

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Correct Answer :

none of these

Explanation :
No Explanation available for this question

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